The La Puerta Bank of Stockholm City has one outside drive-up teller. It takes the teller an average of 4 minutes to serve a bank customer. Customers arrive at the drive-up window at a rate of 12 per hour. The bank operations officer is currently analyzing the possibility of adding a second drive-up window, at an annual cost of Php 1,000,000. It is assumed that arriving cars would be equally divided between both windows. The operations officer estimates that each minute's reduction in customer waiting time would increase the bank's revenue by Php 100,000 annually. Should the second drive-up window be installed? Show computations that will prove your claim.
In: Operations Management
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1. Individual Problems 14-1 Suppose Mattel, the producer of Barbie dolls and accessories (sold separately), has two types of consumers who purchase its dolls: low-value consumers and high-value consumers. Each of the low-value consumers tends to purchase one doll and one accessory, with a total willingness to pay of $56. Each of the high-value consumers buys one doll and two accessories and is willing to pay $109 in total. Mattel is currently considering two pricing strategies:
In the following table, indicate the revenue for a low-value and a high-value customer under strategy 1 and strategy 2. Then, assuming each strategy is applied to one low-value and one high-value customer, indicate the total revenue for each strategy.
The strategy that generates the most revenue is strategy is (?) |
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In: Economics
In the differences between the male versus female urinary tract. EXPLAIN anatomically why one sex has a higher risk of lower urinary tract inflammation or infections. In your explanation, compare the male versus female lower urinary tract including length, locations & nearby organs that might contribute to inflammation or infection?
In: Anatomy and Physiology
? How does chronic hyperglycemia effect
? high-density lipoproteins (HDLs)
? low-density lipoproteins (LDLs)
? triglycerides
? How do these changes contribute to coronary artery disease?
? How does increased platelet aggregation among those with diabetes affect vascular health?
? What is the correlation between hypertension and diabetic complications?
In: Nursing
Explain how the balance of payments situation and the non-convertible nature of the Chinese Yuan (Renminbi) has influenced the current trade dispute between China and the U.S.A.
How might differences in a countries political ideology influence its policy with respect to protection of intellectual property rights? Why might this contribute to trade disputes?
In: Economics
The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 53 and a standard deviation of 7. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 53 and 74?
In: Statistics and Probability
Your driving time to work (continuous random variable) is between 27 and 69 minutes if the day is sunny, and between 47 and 87 minutes if the day is rainy, with a uniform probability density function in the given range in each case.
Assume that a day is sunny with probability = 0.83 and rainy with probability .
Your distance to work is = 50 kilometers. Let be your average speed for the drive to work, measured in kilometers per minute:
Compute the value of the probability density function (PDF) of the average speed at = 0.69
Round your answer to five decimal digits after the decimal point.
In: Statistics and Probability
The temperature in degrees Fahrenheit and the number of emergency calls are shown below. Determine if there is a relationship between the temperature and the number of emergency calls received. Use .05 significance.
|
Number of Calls (Y) |
Temperature (X) |
|
7 |
68 |
|
4 |
74 |
|
8 |
82 |
|
10 |
88 |
|
11 |
93 |
|
9 |
99 |
|
13 |
101 |
What is the p value and is it significant?
Select one:
a. .1898, no it is not significant.
b. .0267, yes it is significant.
c. .2162, yes it is significant.
d. 9.6335, yes it is significant.
The temperature in degrees Fahrenheit and the number of emergency calls are shown below. Determine if there is a relationship between the temperature and the number of emergency calls received. Use .05 significance.
|
Number of Calls (Y) |
Temperature (X) |
|
7 |
68 |
|
4 |
74 |
|
8 |
82 |
|
10 |
88 |
|
11 |
93 |
|
9 |
99 |
|
13 |
101 |
If x is equal to 80, what is the value of y?
Select one:
a. Unable to determine because the relationship is not significant.
b. 7.0.
c. 7.6399.
d. 8.1088.
In: Statistics and Probability
According to a study done by De Anza students, the height for Asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. Suppose one Asian adult male is randomly chosen. Let X = height of the individual.
Part B.
Find the probability that the person is between 64 and 69
inches.
Write the probability statement.
What is the probability? (Round your answer to four decimal places.)
Sketch the graph.
Part C.
Would you expect to meet many Asian adult males over 74 inches? Explain why or why not, and justify your answer numerically.
---Select--- Yes No , because the probability that an Asian male is over 74 inches tall is.
Part D.
The middle 40% of heights fall between what two values?
Write the probability statement.
P(x1 < X < x2) =
State the two values. (Round your answers to one decimal place.)
| x1 | = | |
| x2 | = |
Sketch the graph.
In: Statistics and Probability
In: Statistics and Probability